The Trick… ± How we go about deciding a level of abstraction / concretization that’s useful will be covered in the next lecture… Where we left off… ± We were specifically looking at the “room” called “Exploring: Creating an Internal Idea of a Problem” Engage Define Stated Problem Create Internal Idea of Problem Plan a Solution Carry Out The Plan Evaluate Look Back Frames ± Sub-problems can be generated and organized by a way of a “frame,” a way of looking and perceiving a problem – What details do I keep? – What details do I throw out? – What assumptions am I making? – Are my assumptions correct? ± Each “frame” has its own (self-consistent) set of assumptions Frames… Application (Back to the matchsticks) We return to the matchstick problem ± Where the solution “hides” in plain view – Change the frame of reference: instead of using sticks, write down and list everything that you know about squares How does this list compare with your assumptions?

This is the end of the preview.
Sign up
to
access the rest of the document.